| MLS | How extreme the nutrition label is — flagging high sugar, sodium, saturated fat, and energy-dense sweet formulations. | 0–20 |
| MDS | How many core ingredients have been replaced by industrial substitutes (modified starches, hydrogenated fats, HFCS, protein isolates). | 0–30 |
| AFS | How many chemical additives are stacked in — emulsifiers, preservatives, artificial colors, flavor enhancers. | 0–80 |
| HES | How engineered the sweetener system is — sugar alcohols, non-nutritive sweeteners, and multi-sweetener blending strategies. | 0–20 |
| Composite | MDS + AFS + HES + MLS. How far a product has moved from recognizable food. | 0–150 |
| Processing class — derived from composite score | ||
| C0 | Clean | 0 |
| C1 | Clean, Minimal Markers | 1–5 |
| P1a | Light Processing | 6–15 |
| P1b | Moderate-Light Processing | 16–25 |
| P2a | Moderate Processing | 26–38 |
| P2b | Moderate-Heavy Processing | 39–50 |
| P3 | Heavy Industrial Formulation | 51–75 |
| P4 | Ultra-Formulated | 76+ |
| Metabolic class — derived from MLS | ||
| N0 | No Metabolic Load | 0 |
| N0+ | Minimal | 1–3 |
| N1a | Low | 4–6 |
| N1b | Low-Moderate | 7–8 |
| N2 | Moderate | 9–14 |
| N3 | High | 15+ |
| Drink | Ingredients | Class | What FIS Detected |
| LMNT Sparkling Orange | Sparkling water, salt (sodium chloride), citric acid, natural orange flavor, magnesium malate, potassium chloride, stevia leaf extract | Clean, Minimal Markers | Water + electrolyte salts + stevia — minimal formulation |
| BODYARMOR Fruit Punch 16oz | Filtered water, cane sugar, coconut water concentrate, citric acid, electrolyte blend (dipotassium phosphate, magnesium oxide, zinc oxide), fruit and vegetable juice (color), vitamins (niacinamide, D-calcium pantothenate, pyridoxine hydrochloride, alpha-tocopheryl acetate, retinyl palmitate), natural flavors | Moderate-Light Processing | Coconut water base but 25g sugar — sport drink calories with natural branding |
| Prime Hydration Blue Chill | Water, coconut water concentrate, citric acid, dipotassium phosphate, trimagnesium citrate, L-isoleucine, L-leucine, L-valine, sucralose, gum arabic, acesulfame potassium, natural flavors, ester gum, retinyl palmitate, D-alpha-tocopheryl acetate, pyridoxine hydrochloride, cyanocobalamin | Moderate Processing | 3 Tier A hits: two NNS + natural flavor, plus BCAAs and gum arabic |
| Gatorade Lemon Lime | Water, sugar, dextrose, citric acid, salt, sodium citrate, monopotassium phosphate, gum arabic, glycerol ester of rosin, natural flavor, yellow 5 | Moderate Processing | Yellow 5 (artificial color) + dextrose + gum arabic — the 1965 formula, barely changed |
| Liquid I.V. Strawberry Lemonade | Cane sugar, dextrose, citric acid, salt, potassium citrate, sodium citrate, dipotassium phosphate, silicon dioxide, vitamin C (ascorbic acid), stevia leaf extract, natural flavors, B vitamins (niacin, B5, B6, B12) | Moderate-Heavy Processing | 4 Tier B hits (silicon dioxide, phosphate, two citrates) + sugar/dextrose drive MLS to 13 |
| Propel Grape Powder | Citric acid, maltodextrin, sodium citrate, salt, monopotassium phosphate, modified food starch, sucralose, ascorbic acid (vitamin C), silicon dioxide, vitamin E acetate, niacinamide (vitamin B3), acesulfame potassium, calcium pantothenate (vitamin B5), calcium disodium EDTA (to protect flavor), pyridoxine hydrochloride (vitamin B6), natural flavor, cyanocobalamin (vitamin B12) | Heavy Industrial Formulation | Maltodextrin + modified food starch drive MDS=8; dual NNS + EDTA push AFS to 35 |
| Pedialyte Sport Fruit Punch | Water, dextrose; less than 1% of: galactooligosaccharides, salt, potassium citrate, citric acid, potassium phosphate, natural and artificial flavors, magnesium chloride, sodium citrate, sucralose, acesulfame potassium, and blue 1 | Heavy Industrial Formulation | 4 Tier A hits: blue 1, artificial flavor, 2 NNS — medical-grade formulation |
Seven electrolyte drinks, scores 4 to 62. They all promise the same thing — hydration — but the ingredient lists range from salt water to a synthetic cocktail of artificial colors, dual NNS systems, and industrial emulsifiers.
Key Takeaways
The Hydration Trade-off